Datasheet

TAS5602
www.ti.com ................................................................................................................................................... SLAS593B – JUNE 2008 – REVISED NOVEMBER 2008
TERMINAL FUNCTIONS (continued)
TERMINAL I/O DESCRIPTION
NO. NAME
Forces the output to high impedance state. Use this terminal to quickly ( < 1 ms) disable the output
switching in cases like power fail. If HIZ is tied to RESET, the volume ramps up slowly at start-up,
17 HIZ – but the output switching is stopped quickly at power down.
HIZ = High, normal operation.
HIZ = Low, the outputs held in high impedance state. No switching at output.
Enable/Disable pin. Use this terminal for pop-free start/stop.
18 RESET I RESET = High, normal operation
RESET = Low, held in reset mode
Short circuit fault
FAULT = High, normal operation
19 FAULT O
FAULT = Low, short circuit at output detected. FAULT will latch if short circuit detected and will be
reset if the RESET pin is pulled low or the VCC power supplies are turned off. Thermal fault will
not be reported by the FAULT pin.
20 SE/ BTL I Single-ended or Bridge-tied output select terminal. If any output is configured as a single-ended
load, this pin should be connected to DVDD. For 2-channel, BTL operation, connect to GND.
Thermal warning output flag.
THERM_WARN = HIGH, normal operation.
21 THERM_WARN O
THERM_WARN = LOW, die temperature has reached 125 deg. C. Automatically resets when
temperature falls back to normal range. TTL compatible push-pull output.
41 BYPASS O VCC/8 reference for analog cells
47 BSB I/O Bootstrap I/O for channel B high-side FET
– Internally generated voltage supply for channel A and B bootstrap. Not to be used as a supply or
46 VCLAMP_AB
connected to any component other than the decoupling capacitor.
45 BSA I/O Bootstrap I/O for channel A high-side FET
4 – 6 PVCCA – Positive power supply for channel A output
55, 56 OUTA O Channel A ＝ H-bridge output
1 – 3 PGNDA – Power ground reference for channel A output
48, 49 PVCCB – Positive power supply for channel B output
52 – 54 PGNDB – Power ground reference for channel B output
50, 51 OUTB O Channel B ＝ H-bridge output
34, 35 OUTC O Channel C ＝ H-bridge output
31 – 33 PGNDC – Power ground reference for channel C output
36, 37 PVCCC – Positive power supply for channel C output
26 – 28 PGNDD – Power ground reference for channel D output
29, 30 OUTD O Channel D ＝ H-bridge output
23 – 25 PVCCD – Positive power supply for channel D output
7, 11,
13, 15, NC – No internal connection.
22, 44
– Thermal Pad Connect to PGNDx
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